drm/tegra: Rename host1x_drm_context to tegra_drm_context

The structure represents a context associated with a particular process
that has opened the Tegra DRM device and requested a channel. This is a
very DRM-specific notion and has nothing to do with host1x. Rename the
structure to more clearly mark the boundaries between the two.

Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/host1x/drm/drm.h b/drivers/gpu/host1x/drm/drm.h
index 74869d3..dd6b98b 100644
--- a/drivers/gpu/host1x/drm/drm.h
+++ b/drivers/gpu/host1x/drm/drm.h
@@ -46,7 +46,7 @@
 
 struct host1x_client;
 
-struct host1x_drm_context {
+struct tegra_drm_context {
 	struct host1x_client *client;
 	struct host1x_channel *channel;
 	struct list_head list;
@@ -56,9 +56,9 @@
 	int (*drm_init)(struct host1x_client *client, struct drm_device *drm);
 	int (*drm_exit)(struct host1x_client *client);
 	int (*open_channel)(struct host1x_client *client,
-			    struct host1x_drm_context *context);
-	void (*close_channel)(struct host1x_drm_context *context);
-	int (*submit)(struct host1x_drm_context *context,
+			    struct tegra_drm_context *context);
+	void (*close_channel)(struct tegra_drm_context *context);
+	int (*submit)(struct tegra_drm_context *context,
 		      struct drm_tegra_submit *args, struct drm_device *drm,
 		      struct drm_file *file);
 };